How to graph a system of linear inequalities

The video tutorial explains how to solve systems of inequalities by graphing. It covers the use of slope-intercept form to graph inequalities, the importance of testing points to determine the solution region, and how to identify the feasible region where the solutions to both inequalities overlap. The tutorial emphasizes the need to flip the inequality sign when dividing by a negative number and provides step-by-step instructions for graphing each inequality and shading the feasible region.

Why is it important to test a point when graphing inequalities?

What should you do if your test point lies on the line of an inequality?

Describe the concept of a feasible region in the context of systems of inequalities.